1. Embolic lesions from the subclavian artery causing transient vertebrobasilar insufficiency 
John J. Ricotta, M.D., Kenneth Ouriel, M.D., Richard M. Green, M.D., James A. DeWeese, M.D. 
Journal of Vascular Surgery 
Volume 4, Issue 4, Pages (October 1986)
DOI: / (86)
Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

2. Fig. 1
Angiogram demonstrates presence of ulcerated lesion in left subclavian artery (arrow). This patient had episodic vertigo and intermittent ischemia of the left hand.
Journal of Vascular Surgery 1986 4, DOI: ( / (86) )
Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

3. Fig. 2
Angiogram of patient with thrombus (arrow) in a previously placed carotid-subclavian bypass graft. Thrombosis led to symptoms of vertebrobasilar insufficiency and digital ischemia. The patient was treated successfully by thrombectomy and graft revision.
Journal of Vascular Surgery 1986 4, DOI: ( / (86) )
Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions